package telenumber;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入手机号");
        String telenumber = scanner.next();
        String head = telenumber.substring(0,3);
        String end = telenumber.substring(7);
        String now = head+"****"+end;
        System.out.println(now);
    }
}
